Help with a Moon Cresta Sound

newthing34

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Donor 7 years: 2013, 2020-2025
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I bought a Moon Cresta which had a Galaxian PCB
Took out the Galaxian and install a Moon Cresta PCB
The harness was hack pretty bad, So got a Aftermarket harness got everything working but the sound. I don't know where these 4 pinouts goes.
I do have a audio potentiometers which is original to Moon Cresta.
That is all I need to finish Hope someone can Help
Thanks

1. P vol wiper
2. S vol gnd
3. V vol out
4. 18 SP+
 
Posting speaker, then I need to go look at the harness I have to see if I can track down where the volume pot goes.

18 is speaker
21,22,Y,Z is ground for speaker (other speaker wire)

See attached wiring diagram for speaker
 

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V - vol out - red wire (1st prong on 10k pot (looking at back of pot, prongs down))
P - vol wiper - black wire (2nd prong on 10k pot (looking at back of pot, prongs down))
S - vol ground - bare wire (3rd prong on 10k pot (looking at back of pot, prongs down))

See pictures
 

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